Physicists resolved the centuries-old debate on the nature of light by declaring that it is both a wave and a particle, but for most practical purposes, they treat it as a wave. The distance between wave peaks in a light beam is known as the wavelength, and the total range of possible wavelengths is known as the electromagnetic spectrum. The human eye processes visual information by perceiving only a small fraction of the spectrum. sciencing.com My light photograph is titled “Light Show” .
Journal of Seeing by John Dyess 